Plumbing Contractor Permit Requirements in Davenport, IA

Complete permit and license guide for starting a plumbing contractor in Davenport, Scott County, Iowa.

Updated 2026-03-15 5 stops $400–$1,200 est. 4–10 weeks to obtain all licenses
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Not legal advice. Requirements may change — always verify with your local government authority before applying. This guide was compiled from public and official sources (last updated ) and has not yet been independently source-verified — confirm each requirement before acting on it.

Federal — start here

1 stop

  1. EIN (Employer Identification Number)

    Required if you have employees or operate as an LLC or corporation. Free from the IRS.

    Official government source

    FreeImmediate (online application)

State of Iowa

1 stop

  1. Iowa Department of Revenue — Sales Tax Permit

    Required for all businesses selling taxable goods or services in Iowa. Iowa charges a 6% state sales tax; local option sales taxes of up to 1% may apply. Register with the Iowa Department of Revenue online.

    Official government source

    FreeImmediate (online via eFile & Pay)

City of Davenport / Scott County

3 stops

  1. Iowa Division of Labor — Plumbing Contractor License

    Plumbing contractors in Iowa must hold a Contractor License from the Iowa Division of Labor. A Master Plumber must be on staff. Requires passing a state exam.

    Official government source

    $100–$200 (initial)4–8 weeks

  2. City of Davenport Finance Department — Business License

    Davenport requires a Business License for all businesses within city limits. License fees vary by business type and size. This license must be renewed annually and displayed at your place of business.

    Official government source

    $50–$500/year depending on business type and gross revenues1–3 weeks

  3. Scott County / Davenport Plumbing Permit (per project)

    A separate permit must be pulled with the local building/plumbing department for each job. Inspections are required upon job completion.

    Official government source

    $50–$300 per project1–5 business days

Terminus

Open for business — est. $400–$1,200 · 4–10 weeks to obtain all licenses

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Official Sources

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